Printing form and press.



Patented Nov. 27, |900. E. HETT.

PRINTING FORM AND PRESS. (Application tiled Nov. 20, 1899.)

('Nu Model.)

2 Sheets-Sheet l.

lNvENToR @M Hm BY 4MM/W ATTORNEYS' Patented Nov. 27, |900.

` E.. l-IETT. PRINTING FORM 4All!) PRESS.

uppnmon med Nov. 2o. 1899.) 2 Sheets-Sheet 2.

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EDWARD HETT, OF NEW YORK, N. Y.

PRlNTlNG FORM AND PRESS.

SPECIFICATION forming part of Letters Patent No. 662,868, dated November 27, 1900.

Application filed November 20, 1899i Serial No. 737,655. (No model.)

of the United States, and a resident of New York, (New Dorp,) county of Richmond, and

'State of New York, have invented certain new and useful Improvements in Printing Forms and Presses, of which the following is a speciiication.

The invention relates to printing and other presses ,and to mechanism in such presses permitting the ready and convenient mounting and unmounting of rollers in general, and in particular tubular and cylindrical printingforms having surfaces that are continuous 0r unbroken. i

It consists of the combinations and devices herein shown and described and claimed.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a sectional View, with some of the parts broken away, of one of the rollers or printing-forms of my invention in its preferred form. Fig. 2 is a section of the same taken at right angles to the section of Fig. 1 and on the line :n agand Fig. 3 a similar section on the line y y. Fig. 4 is a detail. Fig. 5 represents a port-ion of a series of printing-forms in a multicolor-press.

10 is the roller or printing-form or formsupport. It is represented in Fig. 1 as a printing-form having a body or base, as, say, of aluminium, a thin layer upon that, as, say, of electrolytically-deposited copper, and a Thin layer upon that, as, say, of electrolytically-deposited zinc, the surface being con tinu` ons or unbroken. The roller 10 has a suitable gear-wheel 11 bolted to it at one end, by which it may be rotated. The roller also has al' each end internally depending flanges which are internally screw threaded and adapted to receive removable end hubs or inner journal extension-pieces 12, which are externally screw-threaded for the purpose of removal and insertion. The end hubs or jonrnal extensions l2 have spring locking-pins 13, operating to lock the hubs 12 fast to the roller or printing-form 10 at any desired predetermined point. The hubs orjournal extensions 12 are internally screw-threaded and adapted to receive the inner ends of short journalshafts proper, 14, the inner ends of Which are screw-tl'ircaded for the purpose and the outer ends of which are adapted to rotate in the usual way in the bearings.

25 is a spring locking-pin for locking the hub or journal extension 12 to the journalshaft proper, 14, at any desired predetermined point. The hubs 12 may properly be regarded as the inner retractile or removable ends or extensions of the shortjournal-shafts 14, these inner ends or extensions 12 being retractile or removable from the roller 10.

15 represents removable and adjustable bushings or bearings, the inner ends of which constitute lateral guides,against which collars on the shafts 14 take, thereby accurately determining the lateral position of the printingform or roller in the press. These bushings 0r 'bearings 15 are externally screw-threaded and fit into internally-sereW-threaded bearings 16, as shown, and hence they are removable from and replaceable in said parts 16, and when replaced and adj usted they are permanently set in such adjustment by the setscrews 17. A series of such lateral guides 15 in a multicolor-press permit the exact and accurate remounting and interchangeable mounting of a printing-form and of all the. printing-forms of a series always in the saine` identicallateral relationship. Similarguides 15 in the transfer-press will permit the accurate transferring of a series of component and registering designs to a series of printing-surfaces and the accurate printing of all those designs simultaneously in register in al multicolor-printing press. The removability of the bearings 15 from their supporting parts 16 permits the long-continued use together of a particular short journal-shaft 14 with its particular bearing 15, whether in transferpress or in printing-press and whether one particular roller or printing-form 10 be in use or another. This attains the snug fit and smooth running of long-used machinery in spite of indefinite interchangeability of rollers or printing-forms or of the other parts. The bearings 16 are movable toward and from the impression-surface of the press or other surface with which the roller cooperates. To that end they are carried by pressure-rods 18, having adj listing-nuts 19 and holding or clamping nuts 20. These pressure-rods 18 may be moved by any desired mechanism.

In Fig. 3 the middle part of the ligure represent-s the printing-surfaces as moved into operative printing position in contact with the impression-surface 21. The left-hand side of the ligure represents the printing-surfaces as moved outwardly by the pressurebars ont of operative position and out of contact with the impression-surface.

To unmount the roller or printing-form, a suitable lifting device 22 is attached to the roller or printing-form and preferably at two points at each end, as shown at 23 in Figs. l and 5. The short journal-shafts proper, I4, which have a squared projecting outer end for thatpurpose, have the lock 24 applied to them t0 keep them from turning during the operation. The movable hubs or journal extensions 12 are then unlocked both from the roller or printing-form l0 and from the screwthreaded part of the journal-shafts proper, 14, by the pulling out of the spring locking bolts 13 and 25. The hubs or journal extensions l2 are then unscrewed from the roller or printing-form and simultaneously screwed upon the journal-shafts proper until they are entirely free and clear from the roller or printing-form. This is the situation shown at the left of Fig. 5. The roller or printing-form may then be lifted to any desired extent until it is entirely clear of all parts of the frame of the machine, as is indicated at the right of Fig. 5. In remounting the roller or printingform the reverse procedure is adopted, and when the hubs or journal extensions l2 are screwed tightly in place they are, as before, locked respectively to the roller or printingform and also to the short journal-shafts proper, and the locking devices 24 are then in condition for operation in use. The hubs or journal extensions l2 have a spoked wheel mounted upon them for convenience in handling.

Forthe purposes of some features of the invention the roller need not be a printing-form nor yet a form-support, but may have other uses. For the purposes of other features of the invention the roller is a printing-form.

Many of the details and parts of the structure as specifically shown in the drawings and heretofore described may be changed or omitted without departing from my invention, the essentials of the several features of which are set out in the several claims hereto appended. It is to be observed, however, that the feature of convenient mounting and dismoun ting of the roller or printing-form is attained without breaking into or sacrificing the circumferential continuity of the surface of the roller or printing-form.

26 represen ts a series of inking mechanisms for the printing-forms.

27 is the frame of the machine.

The printing-form referred to in this speciication may have either a planographic, relief, or intaglio printing-surface.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a press, a tubular roller having a surface that is continuous or unbroken, in combination with two short journal-shafts supporting the roller at its ends, one of which journ al-shafts is retractile from the roller and means to retract the same whereby the roller may loe mounted and dismounted and removable bearings for said retractile journal-shaft and means for locking said bearings in operative position, substantially as described.

2. In a press, a tubular printing-form having a surface that is continuous or unbroken, in combination with two short journal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller and means to retract the same whereby the printing-form may be mounted and dismounted and removable bearings for said retractile journal-shaft and means for locking said bearings in operative position, substantially as described. i

3. In a press, a tubular roller having a surface that is continuous or unbroken, in com bination with two short journal-shafts supporting the roller at its ends, both of said journal-shafts being retractile from the roller, and means to retract the same, whereby the roller may be mounted and dismounted and removable bearings for said retractile journal-shafts and means for locking said bearings in operative position, substantially as described.

4. In a press, a tubular printing-form having a surface that is continuous or unbroken, in combination with two short journal-shafts supporting the printing-form at its ends, both of said journal-shafts being retractile from the roller, and means to retract the same, whereby the printing-form may be mounted and dismounted and removable bearings for said retractile journal-shafts and means for locking said bearings in operative position, substantially as described.

5. In a press, a cylindrical roller having a surface that is continuous or unbroken, in combination with two short journal-shafts supporting the roller at its ends, one of which journal-shafts is retractile from the roller, and means to retract the same whereby the roller may be mounted and dismouuted and removable bearings for said retractile journal-shaft and means for locking said bearings in operative position, substantially as described.

6. In a press, a cylindrical printing-form having a surface that is continuous or unbroken, in combination with two short journal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller, and means to retract the same, whereby the printing-form may be mounted and dismounted and removable bearings for said retractile journal-shaft and means for locking said bearings in operative position, substantially as described.

7. In a press, a cylindrical roller having a surface that is continuous or unbroken, in combination with two short journal-shafts 'supporting the roller at its ends, one of which journal-shafts is retractile from the roller, and means to retract the same mounted upon the journal-shaft proper, whereby the roller IOO IIO

may be mounted and dismounted and removable bearings for said retractile jou rnal-shaf t and means for locking said bearingsin operative position, substantially as described.

8. In a press, a cylindrical printing-form having a surface that is continuous or unbroken, in combination with two short jour nal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller and means to retract the same mounted upon the journal shaft proper, whereby the printing-form may be mounted and dismounted and removable bearings for said retractile journal-shaft and means for locking said bearings in operative position, substantially as described.

9. In a printing-press, in combination with suitable im pression surface or surfaces and a series of suitable inking mechanisms, a series of tubular printing-forms, the printing-forms having a surface that is continuous or uubroken and having two short journal-shafts supporting the printing-form at its ends, one of which is retractile therefrom, and means for retracting the same, and a series of lat eral guides, whereby the printing-forms may be mounted and dismounted, and mounted always accurately in the same relative position laterally with respect to one another, substantially as described.

10. In a printing-press, in combination with suitable impression surface or surfaces and a series of suitable inking mechanisms, a series of tubular printing-forms, the printing-forms having a surface that is continuous or unbroken and having two short journal-shafts Y supporting the printing-form at its ends, both of which are retractile therefrom, and means for retracting the same, and a series of lateral guides, whereby the printing-forms may be mounted and dismounted, and mounted always accu ratelyin the same relative position laterally with respect to one another, substantially as described.

11. In a printing-press, in combination with suitable impression surface or surfaces and a series of suitable inking mechanisms, a series of tubular printing-forms, the printingforms having a surface that is continuous or unbroken and having two short journal-shafts supporting the printing-form at its ends, one of which is retractile therefrom, and means for retracting the same mounted upon the journal-shaft proper, and a series of lateral guides, whereby the printing-forms may be mounted and dismounted, and mounted always accurately in the same relative position laterally with respect to one another, substantially as described.

12. In a printing-press,in combination with suitable impression surface or surfaces and a series of suitable inking mechanisms, a series of tubular printing-forms, the printing-forms having a surface that is continuous or unbroken and having two short journal-shafts supporting the printing-format its ends, both of which are retractile therefrom, and means for reti-acting the same mounted upon the journal-shafts proper, and a series of lateral guides, whereby the printing-forms may be mounted and dismounted, and mounted always accurately in the same relative position laterally with respect to one another, substantially as described.

13. In a press, the 4roller l0 having a surface that is continuous or unbroken, in combination with two short journalshafts 14 having retractile inner extensions or hubs l2 and removable bearings l5, substantially as described.

14. In a press, the roller l0 having a surface that is con tin nous or unbroken, in com bination with two short journal-shafts 14 having retractile inner extensions or hubs l2, and means for locking the inner journal eXtensions or hubs to the roller and to the journalshaft proper and unlocking them therefrom, substantially as described.

l5. In a press, the roller l0 having a surface that is continuous or unbroken, in combination with two short journal-shafts 14 having retractile innerextensions or hubs l2, and locking devices 24, substantially as described.

16. In a press, a tubular roller having a surface that is continuous or unbroken, in com bination with two short journal-shafts supporting the roller at its ends, one of which journal-shafts is retractile from the roller and means to retract the same and suitable lifting devices whereby the roller may be mounted and dismounted, substantially as de scribed.

17. In a press, a tubular printing-form havn ing a surface that is continuous or unbroken, in combination with two short journal'shafts supporting the printing'form at its ends, one of which journal-shafts is retracti-le from the roller and means to retract the same and suitable lifting devices whereby the roller may be mounted and dismounted, substantially as described.

1S. In a press, a tubular roller havingasurface that is continuous or unbroken, in combination with two short journal-shafts supporting the roller at its ends, both of said IOO IIO

journalshafs beingretractile from the roller,

and means to retract the same and suitable lifting devices, whereby the roller may be mounted and dismounted, substantially as described.

19. In a press, a roller or printing-form in combination with two short journal-shafts supporting the roller or printing-form at its ends, one of said journal-shafts being retractile from the roller, and means to retract the same, whereby the roller or printing-form maybe mounted and dismounted, and adjustable and removable bearings for said retractile journal-shaft and means for locking` said bearings in adjusted operative position, substantially as described.

20. In a press, a cylindrical roller havinga surface that is continuous or unbroken, in combination with two short journal-shafts supporting the roller at its ends, one of which journal-shafts is retractile from the roller, and'means to retract the same and suitable lifting devices whereby the roller may be mounted and dismounted, substantially as described.

21. In a press, a cylindrical printing-form having asurface that is continuous or unbroken, in combination with two short journal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller, and means to retract the same, and suitable lifting devices whereby the printing-form may be mounted and dismounted, substantially described.

22. In a printing-press, in combination with suitable impression surface or surfaces and a series of suitable inking mechanisms, a series of tubular printing-forms, the printing-forms having a surface that is continuous or unbroken and having two short journal-shafts supporting the printing-form at its ends, one of which is retractile therefrom, and means for retracting the same, and a series of lateral guides, and suitable lifting devices whereby the printing-forms may be mounted and dismounted, and mounted always accurately in the same relative position laterally with respect to one another, substantially as described.

23 In aprintingpress,in combination with suitable impression surface or surfaces and a series of suitableinking mechanisms, a series of tubular printing-forms, the printing-forms having a surface that is continuous or unbroken and having two short journal-shafts supporting the printing-form at its ends, both of which are retractile therefrom, and a series of lateral guides, and suitable lifting devices, whereby the printing-forms may be mounted and dismounted, and mounted always accuratelyin the same relative position laterally with respect to one another, substantially as described.

24E. In aprinting-press,in combination with suitable impression surface or surfaces and a series of suitable inking mechanisms, a series of tubular printing-forms, the printing-forms having a surface that is continuous or unbroken and having two short journal-shafts supporting the pri nting-form at its ends, both of which are retractile therefrom, and means for retracting the same mounted upon the journal-shafts proper, and a series of lateral guides, and suitable lifting devices, whereby the printing-forms may be mounted and dismounted, and mounted always accurately in the same relative position laterally with respect to one another, substantially as described.

25. In a press, the roller 10, in combination with two short journal-shafts 14 having retractile inner extensions or hubs 12 and removable bearings 15, substantially as described.

26. In a press, a tubular roller, in combiecasee nation with two short journal-shafts supporting t-he roller at its ends, one of which journal-shafts is retractile from the roller, and means to retract the same, whereby the roller may be mounted -and dismounted and removable bearings for said retractile j ournal-shaft and means for locking said bearings in oper ative position, substantially as described.

2'7. In a press, a tubular printing-form, in combination with two short journal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller and means to retract the same, whereby the printing-form may be mounted and dismounted and removable bearings for said retractile journal-shaft and means for locking said bearings in operative position, substantially as described.

28. In a press, the roller 10, in combination with two short journal-shafts 14: having retractile inner extensions or hubs 12, and suitable lifting devices, substantially as de; scribed.

29. In a press, a tubular roller, in combination with two short journal-shafts supporting the roller at its ends, one of which journalshafts is retractile from the roller, and means to retract the same, whereby the roller may be mounted and dismounted, and suitable lifting devices, substantially as described. j

30. In a press, a tubular printing-form, in combination with two short journal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller and means to retract the same, whereby the printing-form may be mounted and dismounted, and suitable lifting devices, substantially as described.

31. In a press, the roller 10, in combination with two short journal-shafts 14 having rctractile inner extensions or hubs 12, and adjustable lateral guides, substantially as described.

32. In a press, a tubular roller, in combination with two short journal-shafts supporting the roller at its ends, one of which journalshafts is retractile from the roller, and means to retract the same, whereby the roller may be mounted and dismounted, and adjustable lateral guides, substantially as described.

33. In a press, a tubular printingform, in combination with two short journal-shafts supporting the printing-form at its ends, one of which journal-shafts is retractile from the roller and means to retract the same, wherebythe printing-form may be mounted and dismounted, and adjustable lateral guides, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD HETT.

Witnesses:

EDWIN SEGER, GEO. W. MILLS, Jr.

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